If you’ve been wishing for something that blends The Expanse’s gritty realism with the squad-based punch of Mass Effect, good news: The Expanse: Osiris Reborn is shaping up to be exactly that game.

Developed by Owlcat Games, Osiris Reborn expands the universe of the beloved novels and TV series with a choice-driven action RPG where you captain your own crew, juggle delicate relationships, and navigate missions across familiar Expanse locations. The newest gameplay reveal highlights a combat system and physics model deeply rooted in real EVA principles: the kind that would make any Beltalowda nod in approval.

To bring that realism home, Owlcat even enlisted former NASA astronaut and ISS commander Leroy Chiao to help recreate what it’s really like to live and work in space. The result? A game where space isn’t a backdrop, it’s a threat. They’ve blended scientific accuracy with sci-fi practicality, creating things like mag-boots (instead of clumsy real-world safety tethers) to keep your character anchored during zero-g firefights. Weapons kick differently, ballistics behave differently, and even sound follows the rules: in vacuum, you’ll hear less than in atmosphere, but more than an astronaut would: mostly your breathing, your comms, and the vibrations traveling through your mag-boots when shots hit the hull.

The game leans heavily into crew dynamics, too. Just like a real mission team, trust is earned over time, shaped by choices that tangibly alter the story. Even the small details matter, from how life in space changes your taste buds to companions chatting about food grown in orbit. It all helps make the ship feel like a real home, not just a loading zone.

There’s no release window yet, and it might be a while before players can climb into the captain’s chair. But based on this first look, Owlcat clearly understands what makes The Expanse special: high-stakes realism, grounded physics, and the bonds between a crew trying to survive the void together.

Whenever Osiris Reborn finally arrives, this one is going to hit the sci-fi fandom hard, especially those of us still missing Rocinante-shaped holes in our hearts.